Breastfeeding after COVID Booster Can Give Babies Antibodies

UF researchers have found that moms that get the COVID-19 booster pass along the antibodies to their children via their breast milk. They tested lactating mothers’ blood to confirm their bodies made COVID-19 antibodies after a booster shot, tested breast milk to confirm the milk had antibodies in it, and tested babies’ poop to confirm antibodies were present in the babies’ bodies.

The team had previously studied antibody functionality in breast milk after mothers received the initial COVID vaccines. “When babies are born, they have an immature immune system, so they rely heavily on mom’s immune system,” says researcher Joseph Larkin. But antibodies wane, so the team wanted to know if moms can provide prolonged protection to their baby by getting the booster.

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